roduct: 3-Day Forecast
:Issued: 2025 Mar 06 0030 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction 
Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Mar 06-Mar 08 2025 is 4.00 (below NOAA
Scale levels).

NOAA Kp index breakdown Mar 06-Mar 08 2025

             Mar 06       Mar 07       Mar 08
00-03UT       3.00         1.33         2.00
03-06UT       2.67         1.33         1.67
06-09UT       2.33         1.67         2.00
09-12UT       2.33         1.67         2.33
12-15UT       1.67         1.67         2.33
15-18UT       2.00         1.33         2.67
18-21UT       2.33         1.33         3.00
21-00UT       2.33         1.33         4.00

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.  No
significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Mar 06-Mar 08 2025

              Mar 06  Mar 07  Mar 08
S1 or greater    5%      5%      5%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

Radio blackouts reaching the R1 levels were observed over the past 24
hours. The largest was at Mar 05 2025 1150 UTC.

Radio Blackout Forecast for Mar 06-Mar 08 2025

              Mar 06        Mar 07        Mar 08
R1-R2           45%           45%           45%
R3 or greater   10%           10%           10%

Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts
through 08 Mar.



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